16 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.969
machine-extracted · confidence unavailable · Check page ↗COC/[name] update document introduction, April 2002
Machine-extracted title · confidence 100%Document introduction describing a cross-agency group tasked with identifying contaminants and establishing health-based screening levels.
NYC-WTC_000164862–000164874
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
*Dioxin (settled dust)
Tier Screening Value Basis Action I > 70 ng/m^ **Risk-based screening level Aggressive cleaning - if for residential setting levels persist, take additional (E-04 X lyr), 1/10 average action to reduce exposure dietary intake II 2 ng/m^ (or background) - 2 ng/m2 - **Risk based Maintain recommended 70 ng/m^ screening level for residential (diligent wet/HEPA) cleaning setting methods -consider additional (E-04 X 30 yr) monitoring III < 2 ng/m^ (or background) Determination of local No further action background
*based on proposed dioxin cancer slope factor
** Methodology based on NYSDOH assessment of office building in Binghamton, NY
Dioxin (indoor air)
I
NYC-WTC_000164870
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